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peter says, If you subtract 17 from my number and multiply the difference by -7, the result is -63. What is ​peters number?

1 Answer

2 votes

Answer:

26

Explanation:

To solve this problem, you first must write it as an equation. The equation should look like this: -63 = (n - 17) x (-7)

Next begin solving. You can do this by applying the inverse operations of the given signs to either side of the equation. So, first divide each side by -7. -63 divided by -7 is 9 and (n - 17) x (-7) divided by -7 is n - 17. So the equation is now 9 = n - 17.

The next step is to use the inverse operation of subtraction and add 17 to either side of the equation. 9 plus 17 is 26 and n - 17 plus 17 is n. This leaves you with 9 = n as your final answer.

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